| 摘要 |
FIELD: time-pieces for easy and correct evaluation of latitude, longitude and present time in unknown place. SUBSTANCE: universal chronometer includes lower plate to mark on its peripheral part names of main cities of the world, scales and values of relative longitude in agreement with actual longitude of mentioned cities and to indicate international line of date changing, round hour plate which accomplishes one revolution for 24 hours and has on periphery scale broken into 24 divisions arranged at equal angles with respect to its center, round star plate which turns through 360.99 degrees for 24 hours. Its axis of rotation coincides with Northern or Southern pole, stars are shown together with concentric circles indicating variation. Concentric circles carry either variation itself or value obtained by subtraction of variation from 90 degrees. In other variants of implementation of invention instead of round star plate there can be used level and/or two measuring bars installed perpendicular to lower plate and displaced from center of clear cover put on chronometer in directions of 0 and 6 hours correspondingly or measuring holes made in case of chronometer in directions of 0 and 6 hours off center of chronometer correspondingly. EFFECT: capability of easy and correct determination of latitude, longitude and present time in unknown place. 5 cl, 5 dwg |
